Top Part: For our Awesome Designs we use ultra soft microfiber and a printing technology called sublimation. While other sellers use DTG (Direct to Garment) printing we know that sublimation printing is the highest possible technology for products that never fades in time. You can wash it even at 90°C (194 Fahrenheit) using any bleach without loss of quality. Reverse Side: 100% Organic Cotton Sateen for extra comfort.